Changing Column Header Text when Sorting is Enabled

DESCRIPTION

It is possible to get the GridHeaderItem instance during the PreRender event handler of the grid and change the text of any cell using the headerItem["ColumnName"].Text = "New Value" approach: https://docs.telerik.com/devtools/aspnet-ajax/controls/grid/how-to/Common/using-the--getitems-getcolumn-and-getcolumnsafe-methods#items  
However, when the AllowSorting setting is enabled, changing the Text property of the cell directly breaks the sorting functionality of the column, because it clears the inner controls within the given cell.

SOLUTION

You can use one of the following approaches to resolve the issue:

In DataBinding event

C#

protected void RadGrid1_DataBinding(object sender, EventArgs e)
{
    RadGrid1.MasterTableView.GetColumn("ShipName").HeaderText = "Success";
}

In PreRender event

C#

protected void RadGrid1_PreRender(object sender, EventArgs e)
{
    TableCell cell = RadGrid1.MasterTableView.GetHeaderCellByColumnUniqueName("ShipName");
    (cell.Controls[0] as LinkButton).Text = "Success";
}